dual-purposed with four SFP-based Gigabit ports. Expansion module slot offers additional Gigabit or 10-Gigabit Ethernet connectivity. The 10/100/1000 ports also provide Power over Ethernet (PoE), for distribution of power to other devices over the same cabling used for data.The Switch 5500G-EI supports distributed, resilient 3Com XRN Stacking Technology with 48 Gbps stacking bandwidth (96 Gbps full duplex) and advanced Layer 3 (RIP / OSPF) routing, Layer 2-4 QoS, and rate limiting features.This switch provides extensive security features - SNMP v3, SSH, network login - and resilient hot-swap stacking for simplified management and monitoring.All 3Com Switch 5500 products share the same operating system as the 3Com premium modular switches and routers, including the 3Com Switch 8800 and 7700. This permits you to manage an entire distributed switching and routing infrastructure from a single CLI or SNMP management platform such as 3Com Enterprise Management Suite or 3Com Network Director.  (less)

dual-purposed with four SFP-based Gigabit ports. Expansion module slot offers additional Gigabit or 10-Gigabit Ethernet connectivity. The 10/100/1000 ports also provide Power over Ethernet (PoE), for distribution of power to other devices over the same cabling used for data.The Switch 5500G-EI supports distributed, resilient 3Com XRN Stacking Technology with 48 Gbps stacking bandwidth (96 Gbps full duplex) and advanced Layer 3 (RIP / OSPF) routing, Layer 2-4 QoS, and rate limiting features.This switch provides extensive security features - SNMP v3, SSH, network login - and resilient hot-swap stacking for simplified management and monitoring.All 3Com Switch 5500 products share the same operating system as the 3Com premium modular switches and routers, including the 3Com Switch 8800 and 7700. This permits you to manage an entire distributed switching and routing infrastructure from a single CLI or SNMP management platform such as 3Com Enterprise Management Suite or 3Com Network Director.  (less)

switching is not possible. Based on the address-forwarding table, the hardware performs line-speed switching of Layer 2 / Layer 3 data packets. VLANs, link aggregation, QoS traffic classification and prioritization, and ACLs (Access Control Lists) are also supported by the hardware. In addition to switching functions, the Switch Fabric Module performs control and management functions for the system. The management channel performs such functions as initialization and configuration of the system, data packet learning, protocol processing, and network management. It also provides environmental monitoring, software upgrade and interface module control.  (less)

that excel at low cost of acquisition and ownership.  (less)

Advanced switching features such as Class-of-Service (CoS) 802.1p traffic prioritization make sure that real-time applications such as video and audio take priority so they run effectively, and enable the switches to operate in larger network environments.  (less)

with other 3Com SuperStack switches for the combination that suits you best.  (less)

play. Like the highly popular and award-winning 3ComImpact IQ ISDN modem before it, this terminal adapter is simple to install and use. You even get your choice of connection over the RS-232 or USB port. This terminal adapter is fast, too. Its serial transmission speed is 230.4 Kbps with compression, 128 Kbps without.The 3Com U.S. Robotics ISDN terminal adapter also saves you money - you can use a single ISDN line for all your communications. Connect up to six analog devices to the terminal adapter's two ADP ports - your telephone and fax can simultaneously use the ISDN line. The Dynamic Voice Override feature automatically adjusts data call rates to let you talk on the phone or send/receive a fax while you're online. This and its other advanced features such as Always-on/Dynamic ISDN, AutoSPID Wizard, Auto Update, and support for USB, Windows, and Macintosh bring you more value than other terminal adapters on the market. The 3Com U.S. Robotics ISDN terminal adapter offers the features that large corporations insist on while making ISDN affordable for the home or small office. It brings you easy, full-featured ISDN for more working or playing, and less waiting.  (less)

SAS connections or three DAS connections. You can remove and replace the modules with the system on.  (less)

complies with all IEEE 802.3u specifications. You can remove and replace the module with the system on. The module is recommended for use in 3Com?s CoreBuilder 3500 System.  (less)

devices without IRQ conflicts.  (less)

and 100BASE-T, and FDDI and FDDI.  (less)

you a flexible, cost-effective connectivity solution for all types of networks. These network cables allow for the creation of flexible, affordable enterprise network solutions combining diverse technologies and network services in one system, so your resources go farther and do more.This cable is designed for AccessBuilder 6100.  (less)

cards include Parallel Tasking and PACE Interactive Access technology with DynamicAccess features allowing the card to be an active network component that interacts with your network to improve performance. Additional DynamicAccess features include Desktop dRMON (Distributed RMON) support, Efficient Multicast Control, and PictureTel LiveShare Plus dataconferencing software. Other DynamicAccess features will continue to be added to the XL series in the future through simple software upgrades. The card has one LED that glows to indicate link integrity of a 10BaseT hub and will flash if the polarity of the wire is reversed. Installation is a breeze with these cards using the AutoLink software, which consists of a single step procedure. Also included is the EtherDisk XL software, which contains drivers for most of the popular operating systems.  (less)

3Com solutions enhance your network's performance, taking advantage of 3Com's leading edge technologies that keep you one step ahead of the progressing needs for high bandwidth and speed.  (less)

Cable to the top switch's available stacking port and the bottom switch's available stacking port. A further requirement is that each switch in the stack be connected to the next with a SuperStack 3870 Stacking Cable. Specifications Length: 51.2 in./130 cm In the Box 3Com Resilient Stacking Cable for SuperStack 3 Switch 3879 Warranty Limited lifetime Mfr. Part No.: 3C17463 Note: Products sold through this Web site that do not bear the Apple Brand name are serviced and supported exclusively by their manufacturers in accordance with terms and conditions packaged with the products. Apple's Limited Warranty does not apply to products that are not Apple-branded, even if packaged or sold with Apple products. Please contact the manufacturer directly for technical support and custom  (less)